Updated August 30, 2023Deborah Becker A Narcan nasal device used to administer naloxone. (Mary Altaffer/AP)A Narcan nasal device used to administer naloxone. (Mary Altaffer/AP)The overdose reversal nasal spray Narcan will be available over the counter at many large chain pharmacies in the coming days, at a cost of $44.99 for a two-dose pack. The company...